Key Features - SimCom SIM548C HD V1.01 Hardware Design

SIM548C Hardware Design
The SIM548C is fully RoHS compliant to EU regulation.

2.1 Key features

Table 3: Key features
Feature
Power supply
Power saving
Charging
Frequency bands
GSM class
Transmitting power
GPRS connectivity
GPS features
Temperature range
DATA GPRS:
SIM548C_HD_V1.01
Implementation
GSM part: Supply voltage 3.4V – 4.5V
GPS part: Separate power supply source: 3.3V ± 5%
GSM part: Typical power consumption in SLEEP mode to
3.5mA ( BS-PA-MFRMS=5 )
GPS part: Power Down mode / Push-to-Fix mode
Supports charging control for Li-Ion battery
EGSM 900/DCS 1800 and GSM850 MHz/PCS 1900 MHz. The
SIM548C can search the frequency bands automatically. The
frequency bands also can be set by AT command.
Compliant to GSM Phase 2/2+
Small MS
Class 4 (2W) at EGSM 900/GSM 850
Class 1 (1W) at DCS 1800/PCS 1900
GPRS multi-slot class 10 (default)
GPRS multi-slot class 8 (option)
GPRS mobile station class B
GPS receiver with SiRFstar III chip set
Processor type ARM7/TDMI
Operation Temperature:
Normal operation: -30°C to +80°C
Restricted operation: -40°C to -30°C and +80°C to +85°C
Storage temperature -45°C to +90°C
GPRS data downlink transfer: max. 85.6 kbps
GPRS data uplink transfer: max. 42.8 kbps
Coding scheme: CS-1, CS-2, CS-3 and CS-4
SIM548C supports the protocols PAP (Password Authentication
Protocol) usually used for PPP connections.
The SIM548C integrates the TCP/IP protocol.
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09.05.2008